Price transmission,asymmetric adjustment and threshold effects in the cotton supply chain: a case study for Vidarbha,India

This study examines price transmission asymmetries in Vidarbha's (India) cotton supply chain from 2002 to 2012. The analysis takes account of thresholds in price adjustments toward their long‐run equilibrium. The first stage considers the price dynamics between international and Indian domestic cotton prices. The second stage considers price transmission from domestic to farm gate cotton prices in Vidarbha. Results from the first stage indicate that Indian and international cotton markets are well‐integrated. In contrast, the second stage reveals significant threshold‐type nonlinearities as well as asymmetries in price transmission between domestic and farm gate prices. The short‐run dynamics suggest that the pass‐through from domestic to farm gate prices is larger when domestic prices decrease than when they increase. Moreover, back of the envelope calculations suggest that the loss in revenue for a typical farmer from a decrease in domestic price is larger than the gains from an increase in domestic price of the same magnitude. The implication is that traders benefit from price fluctuations at the expense of farmers. Evidence from fieldwork in Vidarbha suggest that asymmetries revealed in this analysis may be linked to trader's market power and inadequate market information among farmers.     

Development Assistance and Exports: The Case of the United States

The relationship of development assistance and exports has been a controversial subject in recent years. U.S. public organizations feel that development assistance, particularly for research, while intended primarily and immediately to encourage economic development in low-income nations, will also help increase the effective demand for agricultural exports. Some commodity-oriented U.S. farm groups, on the other hand, see assistance primarily in terms of leading to increased competition for exports of their product. They would have the U.S.A. provide less international support for agricultural development and they have had some influence. While there has been considerable debate on the subject, this has not yet resulted in the development of an enlightened national policy. The paper attempts to sort out the facts and perceptions that have led to this situation and to provide some policy suggestions. Two important needs are for: (a) greater public understanding, and (b) strengthened domestic research and improved linkages between domestic and international research activities. Paradoxically, the latter point tends to be overlooked by some of the farm groups but is essential if the U.S. is to remain competitive in what is likely to become a more open international market in the future.     

Farm Business and Household Expenditure Patterns and Local Communities: Evidence from a National Farm Survey

Farm operators are an integral part of some rural economies. The businesses they operate support jobs and purchase goods and services from local implement and input suppliers. Farm household spending on food, furniture and appliances, trucks and automobiles, and a range of consumer goods also supports local jobs and retail businesses. Based on the 2004 Agricultural Resource Management Survey, the linkages between farm household and business expenditures and communities are explored. Farms in urban areas purchase household goods in markets closest to the farmstead, but traveled further to purchase farm business items. The opposite pattern was observed in rural locations.     

The effects of China's growth on the food prices and the food exports of other developing countries

This article explores the impacts of China's growth in the international markets of agricultural products along two dimensions: food price inflation and export growth in other developing countries. China's food imports of vegetable oils have grown dramatically over the last decade, linking China's economic growth to the recent increases in global food prices. If China is a source of global food price inflation, exporting countries will benefit whether they sell directly to China or not. These direct and indirect linkages are explored using a short‐run, partial‐equilibrium model of international trade in agricultural products in which consumer prices and trade costs are derived from bilateral trade flows. China's effects on food prices and exports are estimated by reducing Chinese food expenditures in 2007 by half, roughly China's level of expenditures in 1995. Results indicate that food prices as measured by CES price indexes in developing Asia, Africa, and Latin America would have been reduced by 1.27%, 0.32%, and 0.22%, respectively. China has been an important source of growth for exporters selling directly to China. There is no evidence of export growth due to an overall increase in food prices caused by China's growth.     

Perspectives on Natural Resources in the Global Economy: Polity Series Review

Polity's ‘Resources’ series is a set of scholarly books, each of them dealing with a single resource or resource‐based commodity from a generally global or international perspective. As of this writing, nine books have been published in the series, six of which I review here. The series is a welcome contribution to interdisciplinary and overall critical perspectives on the social and environmental dimensions and implications of the international appropriation, production and exchange of natural resources. While there is no clear disciplinary bent or theoretical foundation running across the volumes, together the books develop a transnational perspective, stressing the linkages between specific sites of appropriation and production, on the one hand, and broader political economic networks of processing, finance, coordination, commercial distribution and social regulation, on the other. The books should serve as valuable references to researchers in academic, government and non‐government institutional settings, but should also prove valuable for undergraduate teaching on contemporary natural resource industries and their social regulation.     

新一轮国际粮食价格上涨：原因及对中国市场的影响

[目的]随着中国粮食进口不断增加,国内外市场联系越来越紧密。2020年下半年以来,国际市场粮食价格快速上涨,对国内粮食市场产生一定影响,分析国际市场价格上涨的原因和影响对确保国内粮食供应稳定、保障国家粮食安全具有重要意义。[方法]文章分析了2019年以来小麦、大米、玉米、大豆4种粮食产品的国内外价格走势,从供需状况、贸易政策、气候变化等因素分析国际市场价格波动的原因,并探讨了国际价格对国内价格的影响。[结果]当前全球主要粮食品种供应充足,库存仍处于较高水平,此轮国际粮食价格上涨主要是受到美国等发达国家宽松的货币政策以及疫情后全球消费逐步回暖的影响;但国际市场价格上涨对中国市场的影响总体有限,国内小麦、大米、玉米价格上涨的主因是国内消费回暖和生猪产能恢复带动的饲用需求快速增长,油用大豆受国际市场的影响较大。[结论]为稳定国内粮食市场,避免国际市场的冲击,中国要进一步提升粮食综合生产能力,强化科技支撑,加强粮食储备管理,健全政策支持体系,并引导居民建立科学的消费观念。     

Knowledge diffusion and agricultural development

Low agricultural productivity remains the primary source of poverty in the developing regions and yet little is known about the influence on agricultural productivity of domestic and international accumulated R&D knowledge and the channels through which this knowledge is transmitted internationally. Following a large scientific literature, this article argues that R&D and R&D knowledge spillover are ecozone‐specific and, therefore, are transmitted internationally through ecozones, where ecozones are the broadest biogeographic division of the earth's land surface. Using data for a panel of 88 countries, it is shown that international knowledge spillovers are ecozone‐specific and have been an important contributing factor behind the marked widening of the income gap between developed and developing countries since 1983.     

Hegemony,Technological Innovation and Corporate Identities: 50 Years of Agricultural Revolutions in Argentina

The technological changes that have occurred since the mid‐1960s in Argentine agriculture – first the Green Revolution and then the Agribusiness Paradigm – have been conceptualized as revolutionary not only with regard to their productivity improvements but also because they brought with them a change of mentality. Based on two different business conceptions, during each period an agrarian elite led the ‘revolutionary’ process, offering a technological response as the means of guaranteeing agriculture's ‘survival’ after various crises. For each period, we can identify a correspondence between the status given to technology, the conception of business and the type of government regulation. This paper analyses how the proposition of a ‘technological revolution’ corresponds to the construction of the ideological leadership through which the agrarian bourgeoisie managed to orientate agrarian development.     

水产养殖业新型农业经营主体全要素生产率研究——基于微观主体面板数据和SFA法

目的 新型农业经营主体是推动农业现代化发展的重要力量,研究其生产效率及变化趋势、分析比较不同类型新型农业经营主体的效率对于推进农业高质量发展、促进乡村振兴具有重要意义。方法 文章聚焦水产养殖领域,基于2018—2021年全国429个养殖生产新型农业经营主体样本面板数据,采用随机前沿生产函数分析了全要素生产率（TFP）,并分解其驱动因素。采用共同随机前沿模型比较分析了龙头企业、农民专业合作社和家庭农场3类新型农业经营主体模式的生产技术效率。结果 （1）增加物质资料、劳动力、固定资产等方面的投入对产出增长有显著促进作用,但增加服务投入并未显著促进产出。（2）TFP增长的动力来源是技术进步,规模报酬率的贡献不大,而技术效率和配置效率的下降对TFP增长起到阻碍作用。（3）龙头企业、合作社、家庭农场3类新型农业经营主体的技术效率各有特点,以群组前沿面为基准时家庭农场的技术效率最高,以共同前沿面为基准时合作社的技术效率最高,以技术差距比表征的技术水平衡量,则龙头企业技术水平最高。结论 建议加强科技投入,提升技术效率,优化成本投入结构,加强各类新型农业经营主体的联合与合作。     

中国农业走出去的基本特征、问题与建议

目的 通过分析中国农业走出去的基本情况,总结归纳当前中国农业走出去基本特征和进一步发展的主要问题,并根据主要农产品（农资）国内市场需求程度以及推动走出去的作用,分类给出针对性政策建议。方法 文章运用描述性统计和交叉分析方法,基于对外农业投资数据,结合中国农业走出去在投资区域、投资产业、投资主体和投资方式上的基本特征,分析限制中国农业走出去水平进一步提升的主要问题。结果 中国农业走出去的主要问题表现为：原料进口高度集中且不稳定,经贸摩擦频繁发生;农业走出去企业将强未强,投资产业链短且处于低端;产能转移产业大而不强,科技含量低;内外政策衔接不畅,部门间政策不协调等四方面。结论 因此,建议分类施策,针对直接消费型进口农产品应进一步开放市场,合理预测市场缺口,利用国内市场规模优势培育大型跨国企业;针对原料进口型农产品应推动内外市场产业链对接,加强政策试验,升级“三区”打造总部基地;针对产能转移型农产品应以科技创新为突破点,提高服务贸易的助推剂作用,推动产业阶梯转移促国内高质量发展。     

Information Sharing in Food Supply Chains

Information sharing among firms within many industries accounts for a substantial part of the gains from information technology adoption in these industries. In this paper we examine the determinants of information sharing between retailers and their suppliers, in the food industry supply chain. Using a data set known as the Super Market Panel Data gathered by the University of Minnesota's Food Industry Center, the behavior of food retailers is examined in their adoption of information sharing technologies that facilitate vertical exchange of information with suppliers. Evidence supports the hypothesis that retail firms with larger number of suppliers are more inclined to share, rather than to withhold, information. Prior theoretical work suggests that this happens because retail firms with large number of suppliers are less concerned about opportunistic behavior of suppliers from the misuse of retailer information by the supplier. We also find that self‐distribution chains are more inclined to share information. Finally, the structure of the market plays an interesting role in the type of information sharing platforms that the retailers adopt. Dans de nombreux secteurs, l'échange d'information entre entreprises représente une part substantielle des gains issus de l'adoption des technologies de l'information. Dans le présent article, nous avons examiné les déterminants de l'échange d'information entre les détaillants de la chaîne d'approvisionnement alimentaire et leurs fournisseurs. À l'aide de l'ensemble de données Supermarket Panel Data, établi par le Food Industry Center de l'University of Minnesota, nous avons examiné le comportement des détaillants en alimentation quant à l'adoption des technologies d'échange d'information facilitant l'échange d'information vertical avec les fournisseurs. Les observations appuient l'hypothèse selon laquelle les détaillants qui comptent de nombreux fournisseurs sont plus disposés àéchanger qu’à retenir l'information. D'après des études théoriques antérieures, cette situation serait attribuable au fait que les détaillants qui comptent de nombreux fournisseurs sont moins préoccupés par le comportement opportuniste de fournisseurs qui utiliseraient de façon malveillante de l'information sur le détaillant. Nous avons également observé que les chaînes d'autodistribution étaient plus enclines àéchanger de l'information. Finalement, la structure du marché joue un rôle intéressant dans le type de plateformes d'échange d'information qu’adoptent les détaillants.     

FINANCIAL STRESS AND CONSUMPTION EXPECTATIONS AMONG FARM HOUSEHOLDS: NEW ZEALAND'S EXPERIENCE WITH ECONOMIC LIBERALISATION

A review of New Zealand's experience with assistance to agriculture through the 1960s and 1970s and the subsequent deregulation of the sector in the mid-1980s provides background to this study. Data for sheep and beef farmers are used to elaborate the variety of financial changes in the boom and bust cycles that followed the policy changes. Changes in farm business stress are examined using some conventional financial ratios. New measures which partition household expenditure between consumption and investment are then developed. These better explain the stress experienced among farm households as a consequence of the readjustment process and provide insight to the impact of the legacy of debt, encouraged by government intervention, on farmers' current and expected household consumption over recent years. New Zealand's experience reveals that farm household consumption stress has been unevenly distributed. This suggests that policy concern, following the removal of government assistance to agriculture, should focus principally on the mitigation of the household distress caused by ongoing farm debt commitments.     

How training and innovation link to farm performance: a structural equation analysis

The complexity of modern farm management places great demands on the skill, knowledge and capability of farm managers and their families. Keeping abreast of emerging technologies and innovations that can affect each key farm enterprise, and knowing how best to marshal the resources required for profitable farm production, are key tasks of farm management. This study draws on a longitudinal data set of 240 broadacre farmers to compare and analyse their farm performance over a decade. Using structural equation modelling, we examine relationships between the farm family's involvement in training, their human capital, their use of various innovations and ultimately the linkages of these factors to farm financial and productivity performance. Several statistically significant inter‐relationships are found, and some factors are shown to have significant positive links to farm performance. We find that training undertaken by the farm family, the farm family's human capital and their use of innovations, particularly key cropping innovations, have significant beneficial impacts on farm performance. The farmer's skills in time and organisational management, their engagement in business planning and the unique environmental characteristics of the farm also significantly and positively influence farm performance.     

Price Dynamics in U.S. Grain and Freight Markets

This paper studies the spatial price linkages in U.S. grain and transportation markets using cointegration analysis and algorithms of inductive causation on directed acyclic graphs. Transport costs and prices from alternative transportation modes are considered to provide a relatively comprehensive view of the interaction between grain and freight markets over time. Dynamic relationship among corn prices in selected U.S. markets and freight rates, extending from January 1990 to December 2002, are explored. Results suggest the Mississippi Gulf (lower Mississippi River port area) is the most dominant corn market among evaluated export and domestic markets. Also, grain barge rates on the upper Mississippi/Illinois Rivers influence domestic corn markets in contemporaneous time. In the longer‐run, significant dynamic relationships among prices in domestic and export corn markets and freight rates are observed; perturbations in transportation rates affect the variation in corn prices considerably. Le présent article examine les relations d'arbitrage spatial entre les prix pour les marchés des céréales et du transport aux États‐Unis à l'aide d'une analyse de cointégration et d'algorithmes utilisant la notion de causalité inductive sur des graphiques acycliques orientés. Les coûts et les prix de divers modes de transport sont examinés afin de fournir un tableau assez complet de l'interaction entre le marché des céréales et le marché du fret au fil du temps. Nous avons exploré la relation dynamique entre les prix du maïs sur des marchés états‐uniens sélectionnés et les taux de fret, entre janvier 1990 et décembre 2002. Les résultats indiquent que le golfe du Mississippi (zone portuaire du Mississippi inférieur) est le marché de maïs le plus important parmi les marchés intérieurs et extérieurs évalués. Les frais de transport des céréales par barge sur le cours supérieur du Mississippi et la rivière Illinois influencent les marchés intérieurs du maïs à l'heure actuelle. À long terme, des liens dynamiques importants entre les prix sur les marchés du maïs intérieur et extérieurs et les frais de transport sont observés. Des changements de frais de transport affectent considérablement la variation des prix du maïs.     

Vertical coordination,access to capital,and producer loyalty in the Polish dairy sector

Numerous studies have shown that processing and retail industries have actively assisted farmers in joining the modern food marketing systems. Data from the Polish dairy sector show that assistance is provided not only for the traditional‐channel farmers wishing to modernize, but also for farmers already included in the modern marketing channel. Two explanations can be provided to account for this phenomenon. One, even modern‐channel farmers may lack sufficient funds to maintain required quality/quantity on their own. Two, it may be the case that even after undertaking necessary adjustments, modern‐channel farmers are more likely to quit their relationship with a processor and turn elsewhere, in which case assistance is provided to prevent them from defecting. Using farm‐level data, we investigate the impact of supply chain modernization on farmers’ access to credit and their loyalty toward processors. Our results do not provide compelling evidence to support either hypothesis, suggesting at most a partial explanation for the existence of vertical linkages between processors and modern‐channel farmers in Poland.     

Findings from the Competition Commission's Inquiry into Supermarkets

This paper summarises some of the findings from the Competition Commission's report into supermarkets. First, the paper explains the background to the inquiry. It then presents data showing national and regional concentration, and explores indicators of profitability for the major UK supermarkets, to see if these indicate patterns of excessive profitability. It discusses whether international price comparisons have any role to play in the assessment of the competitiveness of this market. It then addresses pricing issues, particularly: company pricing strategies, evidence on price leading and matching, below‐cost selling, and differential pricing between stores in a chain. The paper then turns to the other main area of the report ‐ supplier relations with supermarkets. A large number of practices were found where supermarkets unreasonably exerted their market power to the detriment of those suppliers and competitors, and because of this the Commission recommended that the OFT should negotiate a code of conduct to govern supermarkets’relations with suppliers. The nature of these practices and the reasons for their being found against the public interest are explained.     

Alternative Demand for University Outreach Services from Georgia's Golf Industry

Recent technological advancements have influenced farmers' growing demand for private information suppliers, a service traditionally monopolized by public outreach programs of land grant educational institutions. This waning appeal for university extension services creates pressure for these institutions to explore other market segments to broaden their audience coverage. This study demonstrates a potential market niche in Georgia's golf industry for university outreach services. Binomial logistic regression results indicate that significant demand ( a ) is negatively influenced by golf facility size; ( b ) is directly related to the level of industry experience of the golf superintendents; and ( c ) could come from facilities that require assistance in growth-, pest-, and employment-related concerns.     

黑龙江省企业技术创新模式的研究

技术创新模式的选择对于技术创新的成功起着决定性的作用。通过对黑龙江省企业技术创新现状进行分析，指出黑龙江省企业技术创新存在的问题，在借鉴海尔和中兴等知名企业技术创新模式的基础上，提出黑龙江省企业技术创新应选择：引进-消化吸收-模仿创新-二次创新-自主创新与合作创新的模式。     

Testing errors, supplier segregation, and food safety

Diagnostic tests provide valuable information to buyers about credence attributes such as food safety and GMO content. Errors in testing, however, can mislead buyers and lead to problems such as adverse selection. The ability to segregate suppliers who can deliver safe food from suppliers who cannot depends on the accuracy of the test procedure. In this article we examine the effect of test sensitivity, specificity, and sampling error on the ability to segregate safe and unsafe suppliers. We find that there is a maximum level of error below which unsafe suppliers are deterred from accepting a utility maximizing buyer's bid price. The maximum error depends on the probability that a supplier's production is unsafe and the cost of producing an unsafe lot, among other things. Understanding this relationship makes it possible to design contracts and government regulations that discourage unsafe suppliers from trading.     

Agricultural price distortions: trends and volatility,past, and prospective

Historically, earnings from farming in many developing countries have been depressed by a pro‐urban bias in own‐country policies, as well as by governments of richer countries favoring their farmers with import barriers and subsidies. Both sets of policies reduced global economic welfare and agricultural trade, and added to global inequality and poverty. Over the past three decades, much progress has been made in reducing agricultural protection in high‐income countries and agricultural disincentives in developing countries. However, plenty of price distortions remain. As well, the propensity of governments to insulate their domestic food market from fluctuations in international prices has not waned. Such insulation contributes to the amplification of international food price fluctuations, yet it does little to advance national food security when food‐importing and food‐exporting countries equally engage in insulating behavior. Thus there is still much scope to improve global economic welfare via multilateral agreement not only to remove remaining trade distortions but also to desist from varying trade barriers when international food prices gyrate. This article summarizes indicators of trends and fluctuations in farm trade barriers before examining unilateral or multilateral trade arrangements, together with complementary domestic measures, that could lead to better global food security outcomes.